The Polar OH1 optical heart rate monitor armband fits snugly around your arm and tracks your heart rate using Polar’s high-quality optical heart rate technology. The armband
can store up to 200 hours of training data which you can synchronise to Polar Flow (training log).
The waterproof heart rate monitor works with all of Polar’s bluetooth-compatible sports watches and trackers and will synch your heart rate in real time to many of the most popular fitness apps on iOS and Android phones.
Website Polar OH1